import java.util.Scanner;


public class demo6 {	
public static void main(String[] args){
int []sx = new int[30];
float []pi = new float[6];
int i=0;
int j=0;
int k=0;
int sum=0;
float p=0;


for(i=0;i<30;i++)
{
for(j=2;j<=60;j+=2)
{
sx[i]=j;

}
sum=sum+sx[i];	
if((++i)%5==0 )
{
	
p=sum/5;
pi[k]=p;
k++;

sum=0;
}

}


 




for(k=0;k<=5;k++)
{
System.out.println(pi[k]);          
}


}
}
